The Illuminati—the most powerful secret organization ever to exist on Earth—emerges from the shadows to carry out the final phase of its legendary vendetta against its most hated enemy: the Catholic Church. A mysterious symbol branded on the chest of a murdered physicist signals the emergence of a demonic force thirsting for revenge. A new weapon of devastating power has been planted at the very heart of the Vatican. Robert Langdon, an expert in ancient symbols, embarks on an extremely risky journey through secret crypts and dangerous catacombs, to uncover a four-century-old trail of ancient symbols that leads him to a forgotten Illuminati hideout, where a dark truth awaits him.